Lightweight flexible roofing laminate and its preparation

Claim 2

A roof-surfacing material comprising an oriented polyvinyl fluoride film containing an amount of pigment within the range sufficient to render said film opaque to ultraviolet light and about 30 percent and at least one surface of which contains functional groups selected from the group consisting of ethylenic unsaturation and hydroxyl, carboxyl, amino and amido groups laminated to a water-resistant, resilient, flexible backing material, said backing material laminated to the surface which contains the functional groups.

Claim 3

A roof-surfacing material comprising an oriented polyvinyl fluoride film containing an amount of pigment within the range sufficient to render said film opaque to ultraviolet light and about 30 percent and at least one surface of which contains functional groups selected from the group consisting of ethylenic unsaturation and hydroxyl, carboxyl, amino and amido groups laminated to a water-resistant, resilient, flexible backing material, said backing material laminated to the surface which contains the functional groups.

Claim 4

A roof-surfacing material comprising an oriented polyvinyl fluoride film containing an amount of pigment within the range sufficient to render said film opaque to ultraviolet light and about 30 percent and at least one surface of which contains functional groups selected from the group consisting of ethylenic unsaturation and hydroxyl, carboxyl, amino and amido groups laminated to a water-resistant, resilient, flexible backing material, said backing material laminated to the surface which contains the functional groups.

Claim 5

A roof-surfacing material comprising a biaxially oriented polyvinyl fluoride film containing about 18 percent titanium dioxide and at least one surface of which contains functional groups selected from the group consisting of ethylenic unsaturation and hydroxyl, carboxyl, amino and amido groups laminated to a water-resistant, resilient, flexible backing material said backing material laminated to the surface which contains the functional groups.

Claim 6

A roof-surfacing material comprising a biaxially oriented polyvinyl fluoride film containing about 18 percent titanium dioxide and at least one surface of which contains functional groups selected from the group consisting of ethylenic unsaturation and hydroxyl, carboxyl, amino and amido groups laminated to a water-resistant, resilient, flexible backing material said backing material laminated to the surface which contains the functional groups.

Claim 7

The article of claim 2 in which the water-resistant, resilient, flexible backing material is a layer of an asphalt-saturated asbestos felt.

Claim 8

The article of claim 2 in which the water-resistant, resilient, flexible backing material is a layer of an asphalt-impregnated, nonwoven fiber glass mat.

Claim 9

The article of claim 2 in which the water-resistant resilient, flexible backing material is a layer of an asphalt-saturated rag felt.

Claim 10

The article of claim 2 in which the water-resistant, resilient, flexible backing material is a layer of a neoprene-impregnated asbestos felt.

Claim 11

A process for preparing a laminate comprising: coating one surface of a surface-receptive polyvinyl fluoride film opaque to ultra-violet light with an adhesive composition, coating one surface of a water-resistant, resilient, flexible backing material with the same adhesive composition, passing said film and said backing material, the adhesive coated surfaces together, between nip rolls, the nip roll next to the film being a cold roll and the nip roll next to the backing material being a heated roll and passing the resulting laminate between cold nip rolls.

Claim 12

A process for preparing a laminate comprising: coating one surface of a surface-receptive polyvinyl fluoride film opaque to ultra-violet light with an adhesive composition, coating one surface of a water-resistant, resilient, flexible backing material with the same adhesive composition, passing said film and said backing material, the adhesive coated surfaces together, between nip rolls, the nip roll next to the film being a cold roll and the nip roll next to the backing material being a heated roll and passing the resulting laminate between cold nip rolls.

Claim 13

A process for preparing a roofing laminate comprising: coating one surface of a biaxially oriented, surface-receptive polyvinyl fluoride film containing about 18 percent titanium dioxide with an adhesive composition, coating one surface of a neoprene-impregnated asbestos felt with the same adhesive composition, passing said film and said felt, the adhesive coated surfaces together, between nip rolls, the nip roll next to the film being a cold roll and the nip roll next to the felt maintained at a temperature of about 150* F. and passing the resulting laminate between cold nip rolls.

Claim 14

A process for preparing a roofing laminate comprising: coating one surface of a biaxially oriented, surface-receptive polyvinyl fluoride film containing about 18 percent titanium dioxide with an adhesive composition, coating one surface of a neoprene-impregnated asbestos felt with the same adhesive composition, passing said film and said felt, the adhesive coated surfaces together, between nip rolls, the nip roll next to the film being a cold roll and the nip roll next to the felt maintained at a temperature of about 150* F. and passing the resulting laminate between cold nip rolls.

Claim 15

A process for preparing a roofing laminate comprising: coating one surface of a neoprene-impregnated asbestos felt with an adhesive composition, passing said felt with a biaxially oriented, surface receptive polyvinyl fluoride film containing about 18 percent titanium dioxide adhered to its adhesived surface between nip rolls, the nip roll next to the film being a cold roll and the nip roll next to the felt maintained at a temperature of about 150* F. and passing the resulting laminate between cold nip rolls.

Claim 16

A process for preparing a roofing laminate comprising: coating one surface of a neoprene-impregnated asbestos felt with an adhesive composition, passing said felt with a biaxially oriented, surface receptive polyvinyl fluoride film containing about 18 percent titanium dioxide adhered to its adhesived surface between nip rolls, the nip roll next to the film being a cold roll and the nip roll next to the felt maintained at a temperature of about 150* F. and passing the resulting laminate between cold nip rolls.

Claim 17

A weather and fire-resistant roofing material comprising a polyvinyl fluoride plastic film adhesively laminated to an asbestos felt backing by means of a thermosetting elastomeric adhesive, said asbestos felt backing impregnated with a nonflammable elastomeric binder, and said plastic film being substantially opaque to protect the adhesive bond thereof to the backing from photochemical degradation.

Claim 18

A weather and fire-resistant roofing material comprising a polyvinyl fluoride plastic film adhesively laminated to an asbestos felt backing by means of a thermosetting elastomeric adhesive, said asbestos felt backing impregnated with a nonflammable elastomeric binder, and said plastic film being substantially opaque to protect the adhesive bond thereof to the backing from photochemical degradation.

Claim 19

A weather- and fire-resistant material for covering and protecting the exposed surfaces of structures comprising a laminate of polyvinyl fluoride plastic film secured by an elastomeric adhesive to an asbestos felt backing impregnated with a nonflammable elastomeric binder, said plastic film being substantially opaque to protect the adhesive bond thereof to the backing from photochemical degradation.

Claim 20

A weather- and fire-resistant material for covering and protecting the exposed surfaces of structures comprising a laminate of polyvinyl fluoride plastic film secured by an elastomeric adhesive to an asbestos felt backing impregnated with a nonflammable elastomeric binder, said plastic film being substantially opaque to protect the adhesive bond thereof to the backing from photochemical degradation.